Power oil removal unit



Oct. '10, 1939. E. 1.. WOOD POWER OIL REMOVAL UNIT Filed July 17, 1936 I ORNEY.

Patented Oct. 10, 1939 UNITED STATES PATENT OFFICE 22 Claims.

This invention relates to power oil removal units adapted to remove oil from the crankcase of internal combustion engines of automobiles and the like.

The main object of this invention is to provide improved, novel, inexpensive means for quickly removing oil from the crankcase of internal combustion engines and the like with suction created in the said removal means from the intake manifold of the said engine when running.

Another object of this invention is to provide a power oil removal unit comprising a portable oil receiver and a permanently mounted connector adapted to be readily engaged by said receiver for simultaneously making temporary connections between said receiver and the intake manifold and crankcase of an internal combustion engine.

Another object of this invention is to provide a power oil removal unit comprising a portable oil receiver and a connector permanently mounted on a motor vehicle, said connector adapted to be readily engaged by said receiver for simultaneously making temporary connections between said receiver and the intake manifold and crankcase of the internal combustion engine of said vehicle, the said connector having means actuated by the positioning of the oil receiver thereagainst for permitting air to be drawn from, said receiver by the suction of the intake manifold of said engine.

Another object of this invention is to provide a power oil removal unit comprising a portable oil receiver and a connector mounted on a motor vehicle, said connector adapted to be readily engaged by said receiver for simultaneously making connections between said receiver and the intake manifold and crankcase of the internal combustion engine of said vehicle, the said receiver having means for controlling the vacuum created therein. 7

Other objects of the invention will become apparent by reference to the following detailed description taken in connection with the accompanying drawing, in which:

Fig. 1 is a more or less diagrammatic fragmentary elevational view of an automobile and its internal combustion engine having a connector of a power oil removal unit embodying the invention suitably mounted under the hood of the automobile and connected in operating relationship to the bottom of the crankcase and the intake manifold of the said automotive engine.

Fig. 2 is a detailed sectional View through a power oil removal unit embodying the invention.

Fig. 3 is a cross sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is a detailed sectional view of a crankcase drainage plug coupling particularly adapted to operatingly connect the oil suction hose to the 5 low point of the crankcase.

Referring particularly to the drawing wherein like numerals refer to like and corresponding parts throughout the several views, the embodiment of the invention disclosed therein comprises,

in general, a power oil removal unit composed of a portable oil receiver 10 having a suitable container H threaded thereto and a connector [2 permanently mounted by means of a suitable bracket E3 or otherwise under the hood M of an 5 automobile preferably adjacent to the internal combustion engine I5 thereof, the said connector i2 having an air suction line i6 therefrom connected to the intake manifold ll of the said internal combustion engine and an oil suction line I8 therefrom suitably connected by means of a special crankcase drainage plug I9 and coupling 20 to the low point of the crankcase 2| of the said internal combustion engine [5.

The-connector generally designated by the numeral l2 in Fig. 1 is shown in detail in Figs. 2 and 3 and'comprises an air suction tube 22 and an oil suction tube 23 of substantially the same length mounted parallel and in spaced relation to each other through a disc 24 with one end of said tubes oil suction tube 23 respectively. The air suction hose I6 is preferably frictionally secured on the air suction tube nipple 26, and the oil suction hose I8 is preferably clamped on the oil suction tube nipple 27 by means of the usual hose clamp 28.

The circular base 25 may be directly mounted under the hood of an automobile or at any convenient place near the intake manifold and crankcase of an internal combustion engine, or it may be pivotally mounted on a bracket as indicated in the drawing. Such pivotal mounting of the base 25 of the connector l2 admits of the use of a large diameter container H on the portable oil receiver l0 without the said container H fouling structure contiguous to that upon which the connector I2 is mounted.

As best shown in Fig. 2 the circular base 25 is preferably pivotally mounted in spaced relationship to a suitable sub-base 29 by means of a pivot 30 cooperating with centrally disposed pivot brackets 3| and 32 integrally formed on the circular base 25 and sub-base 29 respectively. The sub-base 29 is in turn mounted on a suitable bracket I3 or the like by such means as the bolts 34. The base 25 is preferably maintained parallel to the sub-base 29 by such means as a spacer stop 35 and a spring 36 located diametrically opposite to each other on the rear of the said circular base 25 on the axis of pivotal rotation thereof. The said spring 36 is held in its proper position between the said circular base 25 and the sub-base 29 by being engaged over a spring tab 31 on the rear of the said circular base 25 and in an annular spring depression 38 formed in the said subbase 29. The spring 36 resiliently pivots the circular base 25 to the limit of its pivotal rotation with the spacer stop 35 engaged against the subbase 29 and prevents vibration of the connector I2 in respect to its sub-base 29.

The outwardly disposed face of the disc 24 is preferably provided with a beveled edged resilient circular pad 39 of rubber or other suitable material against which the annular open end 59 of the receiver I9 is pressed for readily making an airtight temporary connection between the portable oil receiver II] and the connector I2 as best shown in Fig. 2. It will be noted that the air suction tube 22 and the oil suction tube 23 are hermetically sealed through the said disc 24 by welding or otherwise and that the resilient beveled edged circular pad 39 is hermetically sealed either in respect to the said suction tubes 22 and 23 or in respect to the said disc 24.

The end of the air suction tube 22 is provided with a reciprocating valve 40 which is constantly urged toward its closed position by a spring 4| located around the air suction tube 22 between the back of the valve 40 and a washer 42 hearing against the face of the resilient pad 39. The reciprocating valve 40 shown in its open position in Fig. 2 comprises a cylindrical main body portion axially bored to fit snugly over the air suction tube 22 while the front end of the said main body portion of the said valve 40 is counterbored to slide over a plurality of radially disposed tabs 43 formed at the closed end 44 of the said air suction tube 22. The wall of the said air suction tube 22 is provided with a plurality of apertures 45 so located as to be within the counterbored portion of the said valve 40 when it is in its open position, see Fig. 2, and sealed by the rear portion of the said valve 40 when it is urged to its closed position by the said spring 4|. The shoulder 46 of the valve 4|] engages the radially disposed tabs 43 at the end of the said air suction tube 22 when the said valve 40 is urged to its closed position by the spring 4| and is prevented thereby from sliding oiI the end of the said suction tube 22.

The air suction valve 40 is opened automatically when the portable oil receiver I is manually positioned against the resilient pad 39 of the connector I2.

The oil receiver I0 is preferably formed of any suitable material into a tubular generally elbow shaped member having an annular open end 50 of the proper size to register with the beveled edge of the resilient circular pad 39 of the connector I2 and is provided with an annular throat an integral depending container cap 52, and a container II threaded in the said cap 52 with a suitable washer 53 therebetween to assure an airtight connection between the said oil receiver I0 and its container II.

The said oil receiver II] is provided with a suitably disposed handle 54 by means of which the said oil receiver I0 and the container II may be readily and easily manipulated into proper registry with the said connector I2. A bracket 55 is suspended within the top of the said oil receiver II] in such a position as will permit the said bracket 55 to engage and open the air valve 40 on the air suction tube 22 when the oil receiver I0 is positioned in sealed relationship to the said connector I2. A suitably disposed aperature 56 through the said bracket 55 admits air to be sucked from the container II through the oil receiver I0 into the air suction tube 22.

A partially spherical cup shaped baffle 51 depends from the bracket 56 in such a manner as to direct oil from the oil suction tube 23 away from the air suction valve 40 and into the container II depending from the oil receiver II].

The top of the oil receiver I0 is preferably provided with a suitably located aperture 58 adjacent to the handle 54 thereof which may be closed by the operators thumb as indicated by the numeral 59 in Fig. 2 to permit suction from the intake manifold I? of the internal combustion engine I5 to create a vacuum in the said oil receiver II) when the said oil receiver II] is properly positioned against the connector I2. When suflicient vacuum is created in the said oil receiver Ill and the oil container II, oil from the crankcase 2| of the said internal combustion engine I5 is drawn by the said vacuum into the said oil receiver I0 through the oil suction tube 23. After the oil has been removed from the crankcase 2| of the engine I5, the oil receiver I0 may be withdrawn from registry with the connector I2 and emptied. If the oil receiver I0 is to be withdrawn from registry with the connector I2 during the removal of oil from the crankcase 2| of the engine I", it is necessary to relieve the vacuum created in the oil receiver I0, which is easily accomplished by the operator by removing his thumb 59 from over the aperture 58. Thus a small quantity or sample of oil from the crankcase of an automobile engine may be readily taken and inspected in view of determining whether or not the oil therein requires changing or the like.

The connection between the air suction line I6 and the intake manifold I! of the internal combustion engine I5 may be accomplished in any suitable manner such as threading a nipple into the said intake manifold IT and frictionally engaging the said air suction line I6 thereon.

The connection between the oil suction line I8 and the low point of the crankcase 2| of the internal combustion engine I5 is best accomplished by such means as the special crankcase drainage plug I9 and coupling 20 as hereinbefore mentioned and as best shown in Fig. 4 with the said oil suction line I8 secured on the end of the said coupling 20 by means of the usual hose clamp 28. The bottom of the crankcase 2| is provided with the usual drainage aperture into which is threaded a hollow drainage plug I9 which is telescoped through the enlarged flattened suitably apertured closed end Ell of the coupling 20. Washers 6| around the drainage plug I9 and below and above the flattened apertured end 60 of the coupling 26 assure an oiltight connection therebetween and between the said coupling 20 and the crankcase 2|. A plurality of radially disposed apertures 62 in the hollow plug l9 located to register with the interior of the flattened closed end 60 of the coupling 20 when the said plug [9 is inserted through the said coupling 28 and threaded into the drainage aperture in the bottom of the crankcase 2! permits oil from the crankcase to flow through the said coupling 20.

The particular type of coupling 28 as indicated in Figs. 1 and 4 is desirable inasmuch as little, if any, road clearance is sacrificed by its use and it is Well adapted for installing the invention as an accessory on a motor vehicle. It may be desirable to extend the end of the coupling 20 to a point above the level of the oil as customarily carried in the crankcase 2| so that, in the event the connection of the hose l8 thereto becomes loose or if the said hose l8 slips off the end thereof, oil will not be inadvertently drained from the said crankcase 2!.

Although but one embodiment of the invention has been disclosed and described in detail, it will be understood that various changes including the size, shape, arrangement and details of the various parts thereof may be made without departing from the spirit of the invention, and it is not my intention tolimit the scope of the invention other than by the terms of the appended claims.

I claim:

1. In a power oil removal unit adapted to remove oil from the crankcase of an internal combustion engine when running by suction from the intake manifold thereof, the combination of a connector permanently mounted adjacent to said engine comprising an air suction tube and an oil suction tube suitably connected to the intake manifold and low point of the crankcase of the said internal combustion engine respectively, and a portable oil receiver adapted to be manually positioned over the ends of said suction tubes in hermetically sealed relationship thereto whereupon a vacuum is created in said oil receiver which withdraws oil from the crankcase of said engine into said receiver, the said oil receiver having a suitably disposed aperture therethrough normally sealed by the operator when positioning the said oil receiver over said suction tubes and through which aperture vacuum created in said oil. receiver may be relieved at the will of the operator by removing the seal therefrom.

2. In a power oil removal unit adapted to remove oil from the crankcase of an internal combustion engine when running by suction from the intake manifold thereof, the combination of a connector permanently mounted adjacent to said engine comprising an air suction tube and an oil suction tube suitably connected to the intake manifold and low point of the crankcase of the said internal combustion engine respectively, a valve on said air suction tube normally closing the same, a portable oil receiver adapted to be manually positioned over said suction tubes in hermetically sealed relationship thereto, and means carried by said oil receiver for opening said valve on said suction tube whereby to permit a vacuum to be created in said oil receiver which withdraws oil from the crankcase of said engine into said receiver, the said oil receiver having a suitably disposed aperture therethrough normally sealed by the operator when positioning said oil receiver over said suction tubes and through which aperture vacuum created in said oil receiver may be relieved at the will of the operator by removing the seal therefrom.

3. A power oil removal unit comprising the combination of a connector permanently mounted on a motor vehicle and a portable oil receiver, the said connector having an air suction tube and an oil suction tube protruding therefrom and permanently connected to the intake manifold and to the low point of the crankcase respectively of the internal combustion engine of said motor vehicle, the said oil receiver being adapted to be positioned in hermetically sealed relationship over the ends of said suction tubes whereby to permit suction from the intake manifold of said engine when running to create a vacuum in said oil receiver which withdraws oil from the crankcase of said engine thereinto, the said oil receiver having a suitably disposed aperture therethrough normally sealed by the operator when positioning said oil receiver over said suction tubes and through which aperture vacuum created in said oil receiver may be relieved at the will of the operator by removing the seal therefrom.

4. A power oil removal unit comprising the combination of a connector permanently mounted on a motor vehicle and a portable oil receiver, the said connector having an air suction tube and an oil suction tube protruding therefrom and permanently connected to the intake manifold and to the low point of the crankcase respectively of the internal combustion engine of said motor vehicle, an air valve on said air suction tube normally closing the same, the said oil receiver being adapted to be positioned in hermetically sealed relationship over the ends of said suction tubes and open the said air valve on said air suction tube whereby to permit suetion from the intake manifold of said engine when running to create a vacuum in said oil receiver which withdraws oil from the crankcase of said engine thereinto, the said oil receiver having a suitably disposed aperture therethrough normally sealed by the operator when positioning said oil receiver over said suction tubes and through which aperture vacuum created in said oil receiver may be relieved at the will of the operator by removing the seal therefrom.

5. In a power oil removal unit, in combination,

a connector comprising an air suction tube and an oil suction tube mounted on a motor vehicle and permanently connected to the intake manifold and low point of the crankcase respectively of the internal combustion engine of said motor vehicle, a disc on said connector through which said suction tubes project, a resilient facing pad on said disc, the said suction tubes being hermetically sealed in respect to said disc and its facing pad, and an oil receiver having an annular open end adapted to be positioned over said suction tubes and against said faced disc whereby to permit suction from the intake manifold of said engine when running to create a vacuum in said receiver which withdraws oil from the crankcase of said engine. thereinto.

6. In a power oil removal unit, in combination, a connector comprising an air suction tube and an oil suction tube mounted on a motor vehicle and permanently connected to the intake manifold and low point of the crankcase respectively of the internal combustion engine of said motor vehicle, a disc on said connector through which said suction tubes project, a resilient facing pad on said disc, the said suction tubes being her- 4- metically sealed in respect to said disc and its facing pad, an air valve on said air suction tube normally closing the same, and an oil receiver having an annular open end adapted to be positioned over said suction tubes in hermetically sealed relationship against said faced disc, and means carried by said oil receiver for opening said air valve when said receiver is positioned against said disc whereby to permit suction from the intake manifold of said engine when running to create a vacuum in said receiver which withdraws oil from the crankcase of said engine thereinto.

'7. In a power oil removal unit, in combination, a connector comprising an air suction tube and an oil suction tube mounted on a motor vehicle and permanently connected to the intake manifold and low point of the crankcase respectively of the internal combustion engine of said motor vehicle, a disc on said connector through which said suction tubes project, a resilient facing pad on said disc, the said suction tubes being hermetrically sealed in respect to said disc and its facing pad, and an oil receiver having an annular open end adapted to be positioned over said suction tubes and against said faced disc where by to permit suction from the intake manifold of said engine when running to create a vacuum in said receiver which withdraws oil from the crankcase of said engine thereinto, the said oil receiver having a suitably disposed aperture therethrough normally sealed by the operator when positioning said oil receiver over said suction tubes and through which aperture vacuum created in said oil receiver may be relieved at the will of the operator by removing the seal therefrom.

8. In a power oil removal unit, in combination, a connector comprising an air suction tube and an oil suction tube mounted on a motor vehicle and permanently connected to the intake manifold and low point of the crankcase respectively of the internal combustion engine of said motor vehicle, a disc on said connector through which said suction tubes project, a resilient facing pad on said disc, the said suction tubes being hermetically sealed in respect to said disc and its facing pad, an air valve on said air suction tube normally closing the same, and an oil receiver having an annular open end adapted to be positioned over said suction tubes in hermetically sealed relationship against said faced disc, and means carried by said oil receiver for opening said air valve when said receiver is positioned against said disc whereby to permit suction from the intake manifold of said engine when running to create a vacuum in said receiver which withdraws oil from the crankcase of said engine thereinto, the said oil receiver having a suitably disposed aperture therethrough normally sealed by the operator when positioning said oil receiver over said suction tubes and through which apertuie vacuum created in said oil receiver may be relieved at the will of the operator by removing the seal therefrom.

9. In a power oil removal unit adapted to remove oil from the crankcase of an internal combustion engine when running by suction from the intake manifold thereof, the combination of a connector permanently mounted adjacent to said engine comprising an air suction tube and an oil suction tube suitably connected to the intake manifold and low point of the crankcase of the said internal combustion engine respectively, the said connector being pivoted in respect to its permanent mounting to permit the said connector to accommodate itself to be engaged by oil receivers of various size and configuration without fouling structure contiguous to that upon which said connector is mounted, and a portable oil receiver adapted to be manually positioned over the ends of said suction tubes in hermetically sealed relationship thereto whereupon a vacuum is created in said oil receiver which withdraws oil from the crankcase of said engine into said receiver.

10. In a power oil removal unit, in combination, a connector comprising an air suction tube and an oil suction tube mounted on a motor vehicle and permanently connected to the intake manifold and low point of the crankcase respectively of the internal combustion engine of said motor vehicle, a disc on said connector through which said suction tubes project, a resilient facing pad on said disc, the said suction tubes being hermetically sealed in respect to said disc and its facing pad, the said suction tubes and disc being pivoted in respect to their mounting to permit said connector to accommodate itself to be engaged by oil receivers of various size and configuration without fouling structure contiguous to that upon which said connector is mounted, and an oil receiver having an annular open end adapted to be positioned over said suction tubes and against said faced disc whereby to permit suction from the intake manifold of said engine when running to create a vacuum in said receiver which withdraws oil from the crankcase of said engine thereinto.

11. In a power oil removal unit, in combination, a connector comprising an air suction tube and an oil suction tube mounted on a motor vehicle and permanently connected to the intake manifold and low point of the crankcase respectively of the internal combustion engine of said motor vehicle, a disc on said connector through which said suction tubes project, a resilient facing pad on said disc, the said suction tubes being hermetically sealed in respect to said disc and its facing pad, the said suction tubes and disc being pivoted in respect to their mounting to permit said connector to accommodate itself to be engaged by oil receivers of various size and configuration without fouling structure contiguous to that upon which said connector is mounted, an air valve on said air suction tube normally closing the same, and an oil receiver having an annular open end adapted to be positioned over said suction tubes in hermetically sealed relationship against said faced disc, and means carried by said oil receiver for opening said air valve when said receiver is positioned against said disc whereby to permit suction from the intake manifold of said engine when running to create a vacuum in said receiver which withdraws oil from the crankcase of said engine thereinto.

12. In a power oil removal unit adapted to remove oil from the crankcase of an internal combustion engine when running by suction from the intake manifold thereof, the combination of a connector permanently mounted adjacent to said engine comprising an air suction tube and an oil suction tube suitably connected to the intake manifold and low point of the crankcase respectively of the said engine, a portable oil receiver having one open end, the said oil receiver being threaded at the other end thereof to accommodate containers of various size and configuration, and a container hermetically secured in said threaded end of said oil receiver, the said oil receiver being adapted to be manually positioned over the ends of said suction tubes in hermetically sealed relationship to said connector whereupon a vacuum is created in said oil receiver and container which withdraws oil from the crankcase of said engine thereinto.

13. In combination with an internal combustion engine, means for removing oil from the crankcase of said engine when running by suction from the intake manifold thereof comprising a connector unit fixed with respect to said engine having an air suction tube and oil suction tube connected to the intake manifold and the low point of the crankcase of said engine respectively, valve means at said connector normally closing said air suction tube, and a portable oil receiver adapted to open said valve means simultaneously with hermetically enclosing the ends of said tubes within said oil receiver when said oil receiver is manually positioned against said connector.

14. In combination with an internal combustion engine, a connector unit fixed with respect to said engine having an air suction tube and an oil suction tube connected to the intake manifold and the low point of the crankcase of said engine respectively, an air valve normally closing said air suction tube at said connector, and a portable container adapted to be manually positioned in hermetically sealed relationship with respect to said connector and simultaneously open said air valve whereby to permit a vacuum to be created in said container which withdraws oil from the crankcase of said engine into said receiver when said engine is running.

15. In combination with an internal combustion engine, a portable oil receiver and a connector unit fixed with respect to said engine having an air suction tube and oil suction tube connected to the intake manifold and low point of the crankcase of said engine respectively, an air valve normally closing said air suction tube at said connector, resilient means on said connector adapted to hermetically seal the joint between the said connector and the portable oil receiver when said oil receiver is manually positioned thereagainst, the said oil receiver being adapted to open said air valve simultaneously with being manually positioned against said connector whereby to permit said engine when running to create a vacuum in said receiver and remove oil from said crankcase to said receiver.

16. In combination with an internal combustion engine, a portable oil receiver and a connector unit fixed with respect to said engine having an air suction tube and oil suction tube connected to the intake manifold and low point of the crankcase of said engine respectively, an air valve normally closing said air suction tube at said connector, the said oil receiver being adapted to open said air valve simultaneously with being manually positioned against said connector whereby to permit said engine when running to create a vacuum in said receiver and remove oil from said crankcase to said receiver.

17. In combination with a motor vehicle, a connector unit fixed with respect thereto, an air suction tube and an oil suction tube connected to a source of suction and to the crankcase of the engine of the said vehicle respectively having the free ends thereof unconnected and mounted on the said connector, the free ends of said suction tubes being adapted to be brought into a suction transmitting operation by applying a closure member in sealed relationship around the free ends of said suction tubes.

18. In combination with a motor vehicle, a connector unit fixed with respect thereto, an air suction tube and an oil suction tube connected to a source of suction and to the crankcase of the engine of the said vehicle respectively having the free ends thereof unconnected and mounted on the said connector, and an air valve normally closing the free end of said air suction tube, the free ends of said suction tubes being adapted to be brought into a suction transmitting operation by positioning a closure member in sealed relationship around the free ends of said suction tubes, the said closure member being adapted to open said air valve simultaneously with being positioned around said suction tubes.

19. In combination with a motor vehicle, a connector unit fixed with respect thereto, an air suction tube and an oil suction tube connected to a source of suction and to the crankcase of the engine of the said vehicle respectively having the free ends thereof mounted on the said connector unit, the said connector unit being adapted to be engaged in sealed relationship by a closure member positioned over the free ends of the said suction tubes therein whereby to apply suction from the air tube to the oil tube.

20. In combination with a motor vehicle, a connector unit fixed with respect thereto, an air suction tube and an oil suction tube connected to a source of suction and to the crankcase of the engine of the said vehicle respectively having the free ends thereof mounted on the said connector unit, and an air valve normally closing the free end of the said air suction tube, the said connector unit being adapted to be engaged in sealed relationship by a closure member positioned over the free ends of the said suction tubes therein which is adapted to simultaneously open the said air valve whereby to apply suction from the air tube to the oil tube.

21. In combination with a motor vehicle, a connector unit fixed with respect thereto, an air suction tube and an oil suction tube connected to the intake manifold and to the crankcase of the engine of the said vehicle respectively having the free ends thereof mounted on the said connector unit, the said connector unit being adapted to be engaged in sealed relationship by a closure member positionedover the free ends of the said suction tubes therein whereby to apply suction from the air tube to the oil tube.

22. In combination with a motor vehicle, a connector unit fixed with respect thereto, an air suction tube and an oil suction tube connected to the intake manifold and to the crankcase of the engine of the said vehicle respectively having the free ends thereof mounted on the said connector unit, and an air valve normally closing the free end of the said air suction tube, the said connector unit being adapted to be engaged in sealed relationship by a closure member positioned over the free ends of the said suction tubes therein which is adapted to simultaneously open the said air valve whereby to apply suction from the air tube to the oil tube.

EDWARD L. WOOD. 

